In the Washington Post article, at least the cops made a distinction between a vehicle on public and a vehicle on private property -- for now. I guess the lesson is to make sure your garage is clean and never let you car out of sight when you're in public.

At least there is good news in the article's poll. At last reading, about 60% of the respondents said that doing the GPS thing is a "troubling trend."

Intellectually, I don't see any differences between a tracking device and a telephone wiretap when a court order is considered. Oops -- I just remembered -- you don't need a court order for a wiretap anymore.